| Description: | Description:
The remote host is missing an update to rdesktop
announced via advisory USN-646-1.
A security issue affects the following Ubuntu releases:
Ubuntu 6.06 LTS
Ubuntu 7.04
Ubuntu 7.10
Ubuntu 8.04 LTS
This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.
Details follow:
It was discovered that rdesktop did not properly validate the length
of packet headers when processing RDP requests. If a user were tricked
into connecting to a malicious server, an attacker could cause a
denial of service or possible execute arbitrary code with the
privileges of the user. (CVE-2008-1801)
Multiple buffer overflows were discovered in rdesktop when processing
RDP redirect requests. If a user were tricked into connecting to a
malicious server, an attacker could cause a denial of service or
possible execute arbitrary code with the privileges of the user.
(CVE-2008-1802)
It was discovered that rdesktop performed a signed integer comparison
when reallocating dynamic buffers which could result in a heap-based
overflow. If a user were tricked into connecting to a malicious
server, an attacker could cause a denial of service or possible
execute arbitrary code with the privileges of the user.
(CVE-2008-1802)
Solution:
The problem can be corrected by upgrading your system to the
following package versions:
Ubuntu 6.06 LTS:
rdesktop 1.4.1-1.1ubuntu0.6.06.1
Ubuntu 7.04:
rdesktop 1.5.0-1ubuntu1.1
Ubuntu 7.10:
rdesktop 1.5.0-2ubuntu0.1
Ubuntu 8.04 LTS:
rdesktop 1.5.0-3+cvs20071006ubuntu0.1
In general, a standard system upgrade is sufficient to effect the
necessary changes.
http://www.securityspace.com/smysecure/catid.html?in=USN-646-1
Risk factor : Critical
CVSS Score:
9.3
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